Index Catalog // ScholarsArchive@OSU

Interactions of Trichoderma reesei exo-acting cellulases with p-aminophenyl 1-thio-β-D-cellobioside

Creator:: Piyachomkwan, Kuakoon
Abstract:: Cellulolytic enzymes capable of efficiently degrading crystalline cellulose are a complex mixture of endo- (endoglucanases) and exo-acting (cellobiohydrolases) enzymes. One approach to separating these enzymes is affinity chromatography. A new ligand, p-aminophenyl l-thio-β-D-cellobioside (APTC), is introduced for this purpose. The property of APTC in affinity chromatography is demonstrated using Trichoderma...
Resource Type:: Dissertation
Full Text:: : Interaction of Trichoderma reesei Exo- Acting Cellulases With Immobilized p-Aminophenyl 1-Thio-^-D

Impact of yeast present during pre-fermentation cold maceration on Pinot noir wine aroma

Creator:: Hall, Harper L.
Abstract:: This research investigated yeast populations and diversity during pre-fermentation cold maceration and alcoholic fermentation of Vitis vinifera L. cv. Pinot noir grapes from a commercial vineyard (Dayton, OR). Fermentations were conducted at the Oregon State University research winery in 100 L tanks while grapes from the same vineyard lot were...
Resource Type:: Masters Thesis
Full Text:: : ___________________________________________________________ James P. Osborne This research investigated yeast populations and diversity during pre

Development of new analytical methods for aroma analysis and investigation of impact of native yeasts on wine aroma

Creator:: Zhou, Qin
Abstract:: Three analytical methods for determination of aroma compounds in alcoholic beverages were developed and validated. These methods are sensitive and reliable that can be applied to analyze volatile phenols, stale aldehydes as well as some highly volatile aromas in alcoholic beverages. In the first study, an ethylene glycol (EG) polydimethylsiloxane...
Resource Type:: Dissertation
Full Text:: Michael C. Qian Three analytical methods for determination of aroma compounds in alcoholic

Effect of sensory properties and health information on consumer acceptance and purchase of colorful fresh market potatoes

Creator:: Wechsler, Linda J.
Abstract:: Potato varieties characterized by non-conventional skin and flesh colors (purple, red, yellow) have the potential to revitalize consumer demand for fresh market potatoes because of their unique appearance and health benefits. Red and purple potatoes contain anthocyanins, which are flavonoids responsible for red, blue, and purple pigments in plants. Yellow...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________________________________ Michael T. Morrissey Potato varieties characterized by non-conventional skin and flesh

The effects of cyclopropenoid fatty acids on structural components of microsomal membranes

Creator:: Morrissey, Michael Thomas
Abstract:: Studies were conducted to determine the effects of cyclopropenoid fatty acids (CPFA) on the microsomal membrane of livers of rainbow trout (Salmo gairdneri). Slab and tube gel electrophoresis of microsomes from trout fed a CPFA diet (CPFA-microsomes) for varying time periods showed a decrease in the number of protein bands...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Michael Thomas Morrissey for the

Utilizing Non-Saccharomyces Yeast As Bio-Protectants During Pre-Fermentation Cold Soaking Under Different Conditions

Creator:: Nichols, Melanie L.
Abstract:: Cold soaking is a technique used during red winemaking to alter the aroma, flavor, and phenolic content of a wine. However, cold soaking does not come without risk, as this process can result in the production of spoilage compounds such as acetic acid and ethyl acetate if excessive growth of...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ James P. Osborne Cold soaking is a technique used during red winemaking to alter the

Immobilized cellooligosaccharides in the study of trichoderma reesei cellobiohydrolases

Creator:: Sangseethong, Kunruedee
Abstract:: A novel type of model substrates, i.e. immobilized p-aminophenyl-β-D-cellooligosaccharides, was developed and used in the study of exocellulases. The two major cellobiohydrolases from Trichoderma reesei, CBH I and CBH II were used as representative enzymes. p-Aminophenyl derivatives of cellobiose (PAPG₂), cellotriose (PAPG₃), and cellotetraose (PAPG₄) were synthesized from the reaction...
Resource Type:: Dissertation
Full Text:: : •- -1 - ■ /- \y - Michael H. Penner A novel type of model substrates, i.e. immobilized p

Influence of Biotic and Abiotic Factors on Yeast Communities during Cold Soak and the Consequences for Wine Aroma

Creator:: Johnson, Jared D.
Abstract:: Pre-fermentation cold soak is a winemaking technique used to alter the color, mouthfeel, and aroma of red wine. While it is still debated what impact cold soak has on these wine quality parameters, current thoughts are that resident yeast populations found in fresh grape must play a role in altering...
Resource Type:: Masters Thesis
Full Text:: : _____________________________________________________ James P. Osborne Pre-fermentation cold soak is a winemaking

Use of Organoleptic Methodologies to Evaluate Wine Oligosaccharides and Wines made from Grapevine Red Blotch Virus Positive Vines Subjected to Various Vineyard Management Practices

Creator:: Hoffman, Samuel
Abstract:: The human senses can be used as analytical tools to evaluate many different aspects of our daily lives. The use of our senses through organoleptic methods offers unique and powerful insights into the characteristics of different stimuli. Due to the unique function of the different sensory organs we use to...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: _____________________________________________________ James P. Osborne The

Impact of seasonal variation and growing environment on blackberry aroma

Creator:: Wang, Yuanyuan
Abstract:: Blackberries have been enjoyed for their delicious flavor and high nutritional value for hundreds of years. In North America, blackberries were cultivated since 1850-1860. Blackberries have their characteristic and unique aromas depending on the cultivar and growing conditions. The objective of this study was to evaluate the impact of seasonal...
Resource Type:: Masters Thesis
Full Text:: Seasonal Variation and Growing Environment on Blackberry Aroma Abstract approved: XT Dr. Michael

ScholarsArchive@OSU

Interactions of Trichoderma reesei exo-acting cellulases with p-aminophenyl 1-thio-β-D-cellobioside

Impact of yeast present during pre-fermentation cold maceration on Pinot noir wine aroma

Development of new analytical methods for aroma analysis and investigation of impact of native yeasts on wine aroma

Effect of sensory properties and health information on consumer acceptance and purchase of colorful fresh market potatoes

The effects of cyclopropenoid fatty acids on structural components of microsomal membranes

Utilizing Non-Saccharomyces Yeast As Bio-Protectants During Pre-Fermentation Cold Soaking Under Different Conditions

Immobilized cellooligosaccharides in the study of trichoderma reesei cellobiohydrolases

Influence of Biotic and Abiotic Factors on Yeast Communities during Cold Soak and the Consequences for Wine Aroma

Use of Organoleptic Methodologies to Evaluate Wine Oligosaccharides and Wines made from Grapevine Red Blotch Virus Positive Vines Subjected to Various Vineyard Management Practices

Impact of seasonal variation and growing environment on blackberry aroma

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